JP5844985B2 - Return spring structure for hand-wound watch, hand-wound mechanism and hand-wound watch with the same - Google Patents

Description

  The present invention relates to a return spring structure for a hand-winding timepiece, a hand-winding mechanism including the same, and a hand-winding timepiece.

  In a watch equipped with both a mainspring automatic winding mechanism and a manual winding mechanism (manual winding mechanism), a car (for example, a second transmission wheel) in the middle of a car constituting an automatic winding wheel train from a rotating weight to a square hole wheel. ) Is connected to a wheel train wheel (oscillating round hole wheel or transmission intermediate wheel) constituting the hand winding mechanism. When winding the mainspring with the automatic winding mechanism, the winding by the automatic winding mechanism is avoided to avoid the energy loss caused by turning the wheel between the hand wheel and the rocking round hole wheel In this case, the rotation center shaft of the swinging round hole wheel swings away so that the meshing between the swinging round hole wheel and the second transmission wheel is cut off (for example, patent Reference 1).

  When manually winding the mainspring by turning the crown around the center axis of the winding stem (manual winding), the swinging round hole wheel that had escaped from the second transmission wheel to the non-engaging position was rotated by the round hole wheel. At the same time, it receives the swing torque in the direction set at the meshing position for meshing with the second transmission wheel and tries to mesh with the second transmission wheel. It is known to provide a return spring so that the swinging round hole wheel is reliably displaced from the non-engagement position to the engagement position (Patent Document 2).

  Although this return spring of Patent Document 2 (the holding member 83 of FIG. 6 of Patent Document 1) is to be screwed by the attachment portion (83A), in fact, the size is small (typically In addition to the length of several millimeters or less), it is necessary to fix the screw in a state where a spring load is applied. Moreover, there is a possibility that the mounting stability is poor and positioning is not easy.

  In principle, as a hand-wound timepiece having a hand-winding mechanism equipped with a return spring structure for hand-wound timepiece that is temporarily fixed (locked) only by being disposed at a predetermined position and in a predetermined state, for example, 12 to 15 have been proposed.

  In the hand-winding mechanism 103 of the hand-winding watch 105 shown in FIG. 12, the pinion wheel 112 engaged with the pinion wheel 112 and the ratchet mechanism with the rotation of the winding stem 110 in the normal hand movement position in the XA1 direction is also XA1. The round hole wheel 116 is rotated in the XB1 direction according to the rotation of the hand wheel 114 in the XA1 direction, and the swinging round wheel wheel 120 is swung in the XD1 direction and rotated in the XE1 direction. Then, the square hole wheel 130 is rotated in the XG1 direction via the second transmission wheel 122 to wind up the mainspring 142 in the barrel complete 140. In FIGS. 12 and 13, (a) to (c), 150 is a first receiver, 152 is a self-winding wheel train receiver, 132 is a square hole screw, and 144 is a spiral.

  The automatic winding mechanism (not shown) transmits the reciprocating rotation of the rotary weight to the second transmission wheel 122 as one-way intermittent rotation, intermittently rotates the second transmission wheel 122 in the XJ1 direction, and the square hole wheel 130. Is intermittently rotated in the XG1 direction to wind up the mainspring 142 of the barrel complete 140. If the swinging round hole wheel 120 is engaged with the second transmission wheel 122 immediately after the manual winding, the second transmission wheel 122 moves the swinging round hole wheel 120 when the second transmission wheel 122 rotates in the XJ1 direction. Since the swinging round hole wheel 120 rotated in the XE1 direction and kept in mesh with the round hole wheel 116 is swung in the XD2 direction, the second transmission wheel 122 and the swinging round hole wheel 120 are disengaged. .

  On the other hand, in the case of manual winding in which the winding stem 110 is rotated in the XA1 direction via a crown (not shown), the swinging round hole wheel that has once swung in the XD2 direction and escaped during the operation of the automatic winding mechanism. In the manual winding mechanism 103 of this conventional hand-wound watch 105, the swinging round hole wheel 120 is swung in the XD1 direction so that the 120 can be surely displaced toward the swinging position that meshes with the second transmission wheel 122 again. A return spring or oscillating round hole spring 160 that exerts an elastic force YF1 on the oscillating round hole wheel 120 so as to be biased toward the moving position is provided.

  Here, as can be seen from FIGS. 14 and 15 in addition to FIG. 12, the return spring 160 extends from the proximal end side mounting portion 161 bent in a U shape and the distal end side leg portion 162 of “U”. And a pressing spring portion 163. The pressing spring portion 163 can be elastically deformed or oscillated in the XH1 and XH2 directions with respect to the distal end side leg portion 162 of “U”. The proximal end portion or the distal end portion 165 of the proximal end leg 164 of “U” is formed with a curved locking portion 166 that assists in positioning the return spring 160. This return spring 160 is shown in FIG. In addition, as can be seen from FIG. 14, for example, it is disposed in the return spring disposition recess 153 of the first receiver 150 and is positioned by disposing the tip of the curved locking portion 166 in the small recess 153 a of the recess 153. The

  However, the return spring 160 is not actually easy to assemble. That is, when the return spring 160 is assembled, on the other hand, the pressing spring portion 163 is bent in the XH2 direction in advance so that the elastic force YF1 in the XH1 direction can be exerted on the rocking round hole wheel 120 (relief). On the other hand, the proximal end mounting portion 161 is returned to the first receiving portion 150 so that the curved locking portion 166 is locked in the small recess 153a of the return spring disposing recess 153. It is necessary to arrange in the spring arrangement recess 153. Therefore, in practice, the proximal-side mounting portion 161 is disposed in the return spring arrangement recess 153 of the first receiver 150 so that the curved engagement portion 166 is locked in the small recess 153 a of the return spring arrangement recess 153. Then, the pressing spring portion 163 can exert the elastic force YF1 in the XH1 direction on the swinging round wheel 120 while the return spring 160 proximal end mounting portion 161 is pressed by a finger or the like so as not to come out of the recess. Thus, it is necessary to bend the pressing spring portion 163 in the XH2 direction so as to contact the outer periphery of the swinging round hole wheel 120. That is, when assembling the return spring 160, it is necessary to hold the proximal end side mounting portion 161 of the return spring 160 with one hand and bend or hold the pressing spring portion 163 with the other hand. Further, in this return spring 160, when a force is applied to the pressing spring portion 163 by the impact or the like so as to remove the return spring 160 from the return spring disposition recess 153 of the receiver 150, even if the impact is light, the curved locking portion 166. However, if the curved locking portion 166 is detached from the small recess 153a, there is a high possibility that the return spring 160 is detached from the return spring arrangement recess 153.

JP 2006-258895 A JP2003-279667A (FIG. 6 etc.)

  The present invention has been made in view of the above-mentioned points, and the object of the present invention is that it is easy to assemble, and once assembled, it is difficult to come off even if it receives an unexpected external force such as a light impact. An object of the present invention is to provide a timepiece return spring structure, a manual winding mechanism including the timepiece return structure, and a manual timepiece.

  The return spring structure for a hand-wound watch according to the present invention is pushed into the plate-like placement portion placed on the surface of the support member and the opening of the locking plate-like portion of the support member in order to achieve the above object. A push-pushing spring portion having a push-engagement end portion that is latched on the rear surface of the wall portion defining the opening of the plate-like portion for locking, and is one of the plate-like placement portions. It has what has a hook spring arm part extended from the side edge part, and has a return spring part extended from another side edge part of the said plate-shaped mounting part.

  In the return spring structure for a hand-wound timepiece according to the present invention, “the plate-like placement portion placed on the surface of the support member and the latching plate-like portion of the support member that is pushed into the opening of the engagement plate-like portion” A pushing hook spring portion having a pushing engagement end portion to be latched on the back surface of the wall portion defining the opening portion of the plate-like portion and extending from one side edge portion of the plate-like placement portion Since the plate-like mounting portion is placed on the surface of the support member, the push-engagement spring portion is pressed and the push-in locking end portion of the support member is provided. By pushing into the opening of the locking plate-like portion, the pushing-in locking end located at the tip of the hook spring arm portion extending from one side edge of the plate-like mounting portion is moved to the locking plate-like portion. Since it can be locked at the back surface of the wall portion defining the opening of the first, the assembly can be easily performed.

  Here, typically, an uneven portion is formed on the surface of the support member on which the plate-like placement portion is placed, and the plate-like placement portion has a generally complementary uneven portion that fits into the uneven portion. Is formed to enable positioning of the plate-like placement portion. The concave portion of the plate-like placement portion can be an opening (hole).

  The return spring structure for a hand-wound watch of the present invention typically includes a positioning spring arm portion that extends alongside the hook spring arm portion from the one side edge portion of the plate-like mounting portion and is supported at the tip portion. It has a positioning spring part provided with the pushing engagement end part engaged with the said opening part of a member.

  In that case, when the pushing engagement end of the pushing hook spring is pushed into the opening of the support member, the pushing engagement end of the positioning spring is also pushed together into the opening, and the positioning spring is set to the reference position. Therefore, regardless of the state of the return spring portion, the return spring structure for the hand-wound watch can be securely held at a predetermined position by the positioning spring arm portion and the hook spring arm portion, and may be detached once assembled. This is lower.

  In the return spring structure for a hand-wound watch of the present invention, typically, the push-engagement end portion of the push-push hook spring portion has a push-in guide inclined surface on the distal end side, and the push-engagement stop surface on the proximal end side. Have.

  In that case, when pushing the pushing hook spring part and pushing the pushing locking end into the opening of the support member, the pushing locking end is pushed into the opening by the pushing guide inclined surface, so the pushing locking end Can be easily pushed into the opening, and can be reliably engaged by the pushing engagement surface of the pushing engagement end.

In the return spring structure for a hand-wound watch of the present invention,
(1) The other side edge portion of the plate-like placement portion connected to the return spring portion is the one side edge portion with respect to the one side edge portion of the plate-like placement portion connected to the pushing hook spring portion. Even if the return spring portion extends in a direction intersecting with the hook spring arm portion of the pushing hook spring portion,
(2) The other side edge portion of the plate-like placement portion connected to the return spring portion is the one side edge portion with respect to the one side edge portion of the plate-like placement portion connected to the pushing hook spring portion. And the return spring portion may extend side by side with the hook spring arm portion of the push hook spring portion.

  In the latter case (ie, (2)), even if the return spring structure for a hand-wound watch receives an external force such that the distal end of the return spring portion is lifted with respect to the base end, the return spring structure is detached from the opening. Therefore, the possibility that the return spring structure may come off due to an unexpected external force can be minimized.

  In the return spring structure for a hand-winding timepiece of the present invention, typically, the plate-like mounting portion includes an opening that is engaged with a convex portion protruding from the surface of the support member.

  In that case, stable positioning and fixing of the return spring structure can be performed more reliably.

  In order to achieve the above object, the manual winding mechanism of the present invention is configured so that the return spring structure for the manual winding timepiece meshes with the second transmission wheel from the non-engagement position where the second transmission wheel is disconnected. An elastic force for displacing the swinging round hole wheel to the meshing position is applied to the swinging round hole wheel.

  The hand-wound timepiece of the present invention has the above-described hand-wound timepiece return spring structure or the above-described hand-winding mechanism in order to achieve the above-mentioned object.

A manual winding of a preferred embodiment of the present invention comprising a hand winding mechanism of a preferred embodiment of the present invention provided with a oscillating round hole spring as a return spring structure for a manually wound watch of a preferred embodiment of the present invention. Plane explanatory drawing which showed a part of timepiece. 1 is a cross-sectional view of a part of the hand-winding timepiece of FIG. 1, wherein FIG. Cross-sectional explanatory view showing the second transmission wheel structure, (b) is a cross-sectional explanatory view showing the arrangement state of the swinging round hole spring structure in the manual winding mechanism of the manual timepiece of FIG. ) Is a cross-sectional explanatory view showing a state in which the swinging round hole spring structure of FIG. 1 is locked at the first receiving opening, and (d) is a cross-sectional explanatory view showing a part of the hand-winding timepiece of FIG. Figure. FIG. 3 is a perspective explanatory view of a hand winding mechanism of the hand-winding timepiece of FIGS. FIG. 4 is a partially broken perspective explanatory view of a part of the hand winding mechanism of the hand-winding timepiece of FIGS. 1 and 2 as viewed from a direction different from FIG. 3. FIG. 3 is an enlarged perspective explanatory view of the swinging round hole spring structure of FIG. 1. Another preferred embodiment of the present invention comprises the hand winding mechanism of another preferred embodiment of the present invention provided with a swinging round hole spring as a return spring structure for a hand-wound timepiece of another preferred embodiment of the present invention. Plane explanatory drawing similar to FIG. 1 about a part of the hand-winding timepiece of one Example. FIG. 7 is an enlarged perspective explanatory view similar to FIG. 5 for the swinging round hole spring of FIG. 6. The present invention comprises the hand winding mechanism of still another preferred embodiment of the present invention provided with a swinging round hole spring structure as a return spring structure for a hand-winding timepiece of still another preferred embodiment of the present invention. The plane explanatory drawing similar to FIG. 1 about a part of hand-winding timepiece of another preferable one Example of this. The expansion perspective explanatory view similar to FIG. 5 about the rocking | rounding round hole spring structure of FIG. The present invention comprises the hand winding mechanism of still another preferred embodiment of the present invention provided with a swinging round hole spring structure as a return spring structure for a hand-winding timepiece of still another preferred embodiment of the present invention. The plane explanatory drawing similar to FIG. 1 about a part of hand-winding timepiece of another preferable one Example of this. The expansion perspective view similar to FIG. 5 about the rocking | rounding round hole spring structure of FIG. FIG. 2 is an explanatory plan view similar to FIG. 1 for a part of a conventional hand-wound timepiece having a conventional hand-winding mechanism having a swinging round hole spring as a conventional hand-wound timepiece return spring structure. 12 is a cross-sectional view of a part of the conventional hand-wound timepiece of FIG. 12, and (a) shows a swinging round hole spring and a swinging round hole wheel of the hand-winding mechanism of the conventional hand-winding timepiece of FIG. 2 is a cross-sectional explanatory view similar to FIG. 2A showing the second transmission wheel, and FIG. 12B is an arrangement state of the swinging round hole spring in the manual winding mechanism of the conventional manual winding timepiece of FIG. FIG. 13 is a cross-sectional explanatory view similar to FIG. 2B, and FIG. 2C is a cross-sectional explanatory view similar to FIG. FIG. 14 is an explanatory perspective view similar to FIG. 3 for the manual winding mechanism of the conventional manual winding timepiece of FIGS. 12 and 13. FIG. 13 is an enlarged perspective explanatory view similar to FIG. 5 for the conventional swinging round hole spring of FIG. 12.

  Several preferred embodiments of the present invention will be described based on preferred examples shown in the accompanying drawings.

  FIGS. 1 to 5 show a hand winding mechanism according to a first preferred embodiment of the present invention having a swinging round hole spring structure 1 as a return spring structure for a hand-wound timepiece according to the first preferred embodiment of the present invention. A hand-wound timepiece 3 of the preferred first embodiment of the invention having 2 is shown.

  As can be seen from FIGS. 2 (d) and 2 (a), the hand-winding timepiece 3 has a first receiver 10 and an automatic winding train receiver 7 in addition to the main plate 6 which is a main support substrate. The hand-winding timepiece 3 also includes an automatic winding mechanism (not shown), and is a hand-winding timepiece that can also be automatically wound (an automatic timepiece that can also be manually wound).

  A barrel complete 20 is disposed between the main plate 6 and the first receptacle 10. The barrel complete 20 includes a barrel complete gear 21, a barrel complete 22, a mainspring 23, a square wheel 24, and the like. The spiral mainspring 23 is frictionally engaged with the inner peripheral wall 21a of the barrel gear 21 at the outer peripheral end, and is attached to the barrel full 22 at the inner peripheral end. The square hole wheel 24 is fixed to the barrel 22 with a square hole screw 25 on the back cover side of the first receptacle 10. The barrel complete 22 is supported rotatably on the main plate 6 and the first receptacle 10 via bearing portions 22a and 22b. 26 is kohaze.

  A winding stem 30 is arranged on the main plate 6 so as to be rotatable around the central axis A in the directions of A1 and A2 and in parallel with the extending direction of the central axis A in the directions of A3 and A4. A pinion wheel 32 is fitted to the prism 31 of the winding stem 30 so as to be rotatable integrally with the winding stem 30 in the A1 and A2 directions. When the chimney 34 is fitted to the cylindrical portion 33 of the winding stem 30 and the winding stem 30 is in the normal hand movement position P1 pushed in the A4 direction, the opposing ratchet gear portion of the chiseling wheel 34 and the pinion wheel 32 is located. When 34a and 32a mesh and the winding stem 30 is rotated in the A1 direction, the pinion wheel 32 and the chisel wheel 34 are also rotated in the A1 direction. In addition, when the winding stem 30 rotates in the A2 direction, the rotation of the hour wheel 32 in the A2 direction is not transmitted to the hour wheel 34, and idle rotation occurs between the hour wheel 32 and the hour wheel 34.

  Between the first receiver 10 and the automatic wheel train receiver 7, the most part of the manual winding mechanism 2 or the main winding mechanism main body 4 is arranged.

  The manual winding mechanism main body 4 includes a round hole wheel structure 40, a swinging round hole wheel structure 50, a swinging round hole spring structure 1 as a return spring structure for a hand-wound watch, and a second transmission wheel structure. And a body 70.

  2 (d) and FIG. 1, the round hole wheel structure 40 is the most concentric with the lower round hole wheel 41 and the lower round hole wheel 41 located on the base plate 6 side of the first receiver 10. On the side of the automatic wheel train receiver 7 of the receiver 10, there is an upper round hole wheel 42 positioned in the recess 11. The lower and upper round hole wheels 41 and 42 can rotate integrally around the common central axis B in the directions B1 and B2. The lower round hole wheel 41 is meshed with the outer peripheral gear portion 34b of the chimney wheel 34, and when the pinion wheel 32 and the chimney wheel 34 are rotated in the A1 direction as the winding stem 30 rotates in the A1 direction, the lower round wheel The wheel 41 is rotated in the B1 direction, and the upper round wheel 42 is also integrally rotated in the B1 direction.

  The swinging round hole wheel structure 50 includes a bearing portion 51, a shaft portion 52, and a swinging round hole gear portion 53. The bearing portion 51 is configured to be swingable in the extending direction or the longitudinal directions D1 and D2 of the arc-shaped long hole 19 (FIG. 1) formed in the thin-walled portion 12 in the concave portion 11 of the first receiver 10. 19 is loosely fitted. This circular arc forms part of a circle centered on the central axis B. The bearing 51 includes a cylindrical bearing body 51a that is loosely fitted in the long hole 19, and a flange-shaped portion 51b that is formed at one end of the bearing body 51a on the ground plate 6 side of the thin portion 12 of the first receiver 10. With. The shaft portion 52 includes a cylindrical shaft main body portion 52a fitted in the cylindrical bearing main body portion 51a of the bearing portion 51 so as to be slidably rotatable around the central axis E in the directions E1 and E2, and the shaft main body. And a large diameter portion 52b located on one end side of the portion 52a. The large diameter portion 52 b is located on the ground plate 6 side of the flange-like portion 51 b of the bearing portion 51. A swinging round hole gear portion 53 is fitted to the end portion of the shaft main body portion 52a on the side of the automatic winding train wheel bridge 7. That is, the swinging round hole wheel structure 50 includes a large diameter part 52b on one end side of the shaft part 52, a flange-like part 51b of the bearing part 51, and a swinging round hole gear part 53 on the other end side of the shaft part 52. In a state of being sandwiched, it is loosely fitted into the arc-shaped elongated hole 19 of the first receiver 10 through the bearing portion 51.

  Therefore, the rocking round hole wheel structure 50 includes the meshing position Q1 where the main body 51a of the bearing 51 to which the main body 52a of the shaft 52 is fitted is biased in the D1 direction, and the main body 51a of the bearing 51 in the D2 direction. It is possible to swing in the directions D1 and D2 between the non-meshing position Q2 biased in the direction.

  As will be described in detail later, the oscillating round hole wheel structure 50 receives an elastic biasing force F1 in the D1 direction by the oscillating round hole spring structure 1 as a return spring structure for a hand-wound timepiece.

  The second transmission wheel structure 70 is a shaft portion that is rotatably supported around the central axis J by the bearing portion 71 of the first receiver 10 and the bearing portion 72 of the automatic wheel train receiver 7 in the directions of J1 and J2. 73, and a second transmission gear portion 74 and a second transmission pinion portion 75 attached to the shaft portion 73. The second transmission gear portion 74 is meshed with a train wheel (not shown) of an automatic winding mechanism (not shown), and the second pinion portion 75 is meshed with the square wheel 24. Accordingly, the second transmission wheel structure 70, on the other hand, transmits the rotation of the automatic winding wheel train (not shown) accompanying the rotation of a rotating weight (not shown) to the square wheel 24 and passes through the square wheel 24. Automatic winding of the mainspring 23 is enabled.

  When the oscillating round hole wheel structure 50 is oscillated to the position Q1 biased in the D1 direction, the oscillating round hole wheel portion 53 of the oscillating round hole wheel structure 50 is the second transmission wheel structure 70. The second transmission gear portion 74 can be rotated in the J1 direction by the operation of an automatic winding mechanism (not shown) so that the swing round hole wheel structure 50 is biased in the D2 direction. When oscillated, the meshing between the oscillating round hole gear portion 53 of the oscillating round hole wheel structure 50 and the second transmission pinion portion 75 of the second transmission wheel structure 70 is cut off.

  Before explaining the rocking round hole spring structure 1 as the return spring structure for a hand-wound watch in detail, the portion of the first receiver 10 where the rocking round hole spring structure 1 is disposed will be explained. .

  The first receptacle 10 includes a concave portion 13 for arranging a swinging round hole spring connected to the concave portion 11 through a region 10a. A flat bottom portion 14 and convex portions 15 a and 15 b protruding from the bottom portion 14 are formed on the bottom surface portion 13 a of the recess 13. An opening 16 is formed in the locking plate-like portion 13b that is slightly separated from the bottom surface portion 13a. The opening 16 passes through the locking plate-like portion 13b, and connects the front-side surface 13c of the wall portion 13e that forms the plate-like portion 13b and defines the opening 16, and the back-side surface, that is, the back surface 13d.

  A spring member 60 comprising a punched bent body of a spring-like alloy plate constituting the swinging round hole spring structure 1 as a return spring structure for a hand-wound timepiece includes a plate-like mounting portion 61 and a pushing hook spring portion. 62, a positioning spring portion 63, and a return spring portion 64.

  The plate-like placement portion 61 includes a flat plate-like main body portion 61a, and positioning openings 61b and 61c are formed in the flat plate-like main body portion 61a. In the spring member 60, the flat plate-like main body portion 61a constituting the plate-like placement portion 61 is in contact with the flat bottom portion 14 of the concave portion 13 of the receiver 10 on the back surface 61d, and the convex portions 15a and 15b of the bottom portion 14 are provided. Is placed on the bottom surface portion 13a of the recess 13 so as to fit in the positioning openings 61b and 61c of the flat plate-like main body portion 61a.

  The pushing hook spring portion 62 includes a pushing hook spring arm portion 65 and a pushing locking end portion 66. The hook spring arm portion 65 is connected to one side edge portion 61e of the flat plate-like main body portion 61a at the base end portion 65a, and a base end side arm portion 65b extending from the base end portion 65a and a base end side arm portion 65b. The distal end portion 65c includes a distal end side arm portion 65d extending at a substantially right angle. The push-in locking end portion 66 includes a locking projection 66a that extends laterally with respect to the distal end side arm portion 65d at the distal end portion of the distal end side arm portion 65d. An oblique guide surface 66b as a push guide inclined surface is formed on the lower edge side of the lock projection 66a, and a lock surface 66c extending in a substantially lateral direction as a push lock surface is formed on the upper side. . The proximal-side arm portion 65b and the distal-side arm portion 65d are pushed when the openings 61b and 61c of the plate-like placement portion 61 are fitted into the convex portions 15a and 15b of the flat bottom portion 14 of the recess 13. The locking projection 66a that forms the locking end 66 has such a length that it just faces the opening 16 of the plate-like portion 13b.

  The positioning spring part 63 has a positioning spring arm part 63 a and a pushing engagement end part 67. The positioning spring portion 63 is located on the opposite side of the push-and-push spring portion 62 from the side on which the locking projection 66a constituting the push-in locking end 66 protrudes. The positioning spring arm portion 63a is connected to the side edge portion 61e of the flat plate-like main body portion 61a at the base end portion 63b, and extends in parallel with the base end side arm portion 65b of the pushing hook spring arm portion 65 from the base end portion 63b. It consists of the base end side arm part 63c. The push-in engagement end portion 67 is composed of a distal end side arm portion 67a extending at a substantially right angle at the distal end portion 63d of the proximal end side arm portion 63c. The pushing engagement end portion 67 has a curved inclined guide surface 67c at the distal end portion at one side edge 67b opposite to the side facing the distal end side arm portion 65d of the pushing engagement spring portion 62. The proximal-side arm portion 63c has a push-in engagement end on the distal end side when the openings 61b and 61c of the plate-like placement portion 61 are fitted into the convex portions 15a and 15b of the flat bottom portion 14 of the concave portion 13. The distal end side arm portion 67a forming the portion 67 has such a length that it faces the edge portion 16a on the near side of the opening 16 of the plate-like portion 13b and the edge portion 16b on the opposite side to the side where the pushing hook arm portion 65 is located. Have.

  In the state before the oscillating round hole spring structure 1 is first assembled into the recess 13 of the receiver 10, the outer side edge 65 f of the distal end side arm portion 65 d of the pushing hook spring portion 62 and the distal end side of the positioning spring portion 63 are arranged. A distance W1 between the pushing engagement end portion 67 and the outer side edge 67b is slightly larger than the width K1 of the opening 16.

  The return spring portion 64 is adjacent to the side edge 61e of the flat plate-like main body portion 61a that forms the plate-like placement portion 61, and on the side edge 61f opposite to the side from which the projection 66a of the pushing hook spring portion 62 protrudes. It has the connected return spring arm part 68, and the press part 69 formed in the front end side of this return spring arm part 68. As shown in FIG. The return spring arm portion 68 is connected to the side edge 61f of the flat plate-like main body portion 61a, and is bent at a substantially right angle with respect to the side edge 61f, and the push-in hook spring portion 62 from the base end portion 68a. A return spring arm main body 68b extending in a plane substantially parallel to the proximal end arm 65b of the hook spring arm 65 and the positioning spring arm 63a of the positioning spring 63. The return spring arm main body portion 68b includes a base side return spring arm main body portion 68c and a distal end side return spring arm main body portion 68d that are bent in the extending surface so as to secure the length of the arm so as to lower the spring constant. Have. The pressing portion 69 includes a relatively wide elongated portion 69a connected to the distal end side of the distal-side return spring arm main body portion 68d in the return spring arm main body portion 68b. Accordingly, the return spring portion 64 can be elastically bent and deformed in the H2 and H1 directions so that the pressing portion 69 is moved closer to and away from the positioning spring portion 63 and the pushing hook spring portion 62.

The oscillating round hole spring structure 1 as the manual winding return spring structure configured as described above is in a state before the automatic winding train wheel bridge 7 is assembled, and the manual winding mechanism 2 is provided at the first receiver 10. In the state in which the train wheel and the like constituting the same are incorporated, the opening 61b, 61c of the flat plate body 61a of the plate-like mounting portion 61 of the oscillating round hole spring structure 1 is the convex portion of the recess 13 of the first receiver 10. When a region (an area region of about several mm ² ) including the plate-like mounting portion 61, the pushing hooking spring portion 62, and the positioning spring portion 63 is pushed in with a fingertip or the like in a state where it is arranged at a predetermined position so as to fit in 15a, 15b. Indentation engagement of the positioning spring portion 63 of the swinging round hole spring structure 1 generally positioned by fitting between the openings 61b and 61c of the plate-like mounting portion 61 and the convex portions 15a and 15b of the first receiver 10 End 67 is within opening 16 along edges 16a and 16b of opening 16 M1 with pushed in direction, push along the edge of the push locking end 66 opening 16 of the push hook spring portion 62 of Yuradomaru hole spring structure 1 Murrell. Here, when pushing in along the side edge of the opening 16 of the push-in locking end portion 66 of the push-in hook spring portion 62, the push-in locking end portion 66 is pushed in along the inclined guide surface 66b on the front edge side. When the locking projection 66a reaches the rear surface 13d of the wall 14 defining the opening 16, the locking surface 66c of the push-in locking end 66 is The state comes into contact with the back surface 13d. At this time, the locking surface 66c of the pressing locking end 66 is the back surface of the wall portion 14 due to the elastic force of the hooking spring arm 65 of the pressing hooking spring 62 that is curved in the M1 direction to some extent. Pressed against 13d. Further, since the side edge 67b of the pushing engagement end portion 67 of the positioning spring portion 63 receives a force in the T1 direction from the edge portion 16b of the opening 16, the side edge portion 65f having the pushing locking end portion 66 is also opened in the T1 direction. It is pressed against 16 opposite side edges. As a result, even if an unexpected external force is applied, the push-in locking end portion 66 can be held in a state where there is little risk of detachment from the wall portion 13e of the opening 16.

  After this assembly is completed, the return spring portion 64 is bent in the H2 direction to release the pressing portion 69 from the swinging round hole wheel structure 50 in the H2 direction to the D2 direction. What is necessary is just to make it contact | abut to the outer periphery of the rocking | rounding round hole gear part 53 of the body 50, and to push. As a result, the swinging round hole spring structure 1 is assembled to the swinging round hole gear part 53 of the swinging round hole wheel structure 50 by the return spring part 64 in a state where the swinging round hole spring structure 1 is assembled to the recess 13 of the first receiver 10. On the other hand, a biasing force F1 in the direction D1 is exerted.

  Here, in the oscillating round hole spring structure 1, the plate-like mounting portion of the oscillating round hole spring structure 1 is constituted by the positioning spring portion 63 and the push-in hook spring portion 62 in an assembled state at a predetermined position. The position and attitude of 61 with respect to the first receiver 10 can be kept practically constant. That is, in this oscillating round hole spring structure 1, the plate-like mounting portion of the oscillating round hole spring structure 1 regardless of the H1 or H2 direction oscillating position or the bending position of the pressing portion 69 of the return spring part 64. The position and attitude of 61 with respect to the first receiver 10 can be kept practically constant.

  Therefore, in the manual winding mechanism 2 provided with the swinging round hole spring structure 1, even if the swinging round hole wheel structure 50 has escaped to the non-meshing position Q2, the biasing force to the meshing position Q1 by the return spring portion 64 is achieved. Thus, the rocking round hole wheel structure 50 and the second transmission wheel 70 can be reliably engaged with each other during manual winding.

  Further, in this manual mechanism 2, even if the front end side of the pressing portion 69 of the return spring portion 64 receives a force that swings in the U1 direction toward the back cover side, the locking projection 66a is placed in a plate-like manner. Since the U1 direction displacement of the part 61 is prohibited, even if such an unexpected external force is received as a light impact, there is little possibility that the swinging round hole spring structure 1 will come off. Thereafter, the assembly is completed through the assembly of the automatic train wheel bridge 7 and the like.

  The swinging round hole spring structure as the hand-winding timepiece return spring structure may not include the positioning spring portion. In another preferred embodiment of the present invention shown in FIGS. 6 and 7, the same elements as those shown in FIGS. 1 to 5 are given the same reference numerals and generally correspond but differ from each other. Are suffixed with the same symbol.

  As shown in FIG. 7, the swinging round hole spring structure 1A of another preferred embodiment of the present invention has a plate-like placement portion 61A, a push-and-push spring portion 62A, and a return spring portion 64. 5 is similar to the oscillating round hole spring structure 1 shown in FIG. 5 except that the positioning spring portion 63 is omitted and the pushing hook spring portion 62A has a shape or structure different from that of the pushing hook spring portion 62. This is different from the swinging round hole spring structure 1 shown in FIG. The plate-like placement portion 61A can also have a slightly different shape so that the push-in hook spring portion 62A has an appropriate shape. A hand-wound timepiece 3A according to another preferred embodiment of the present invention having the hand-winding mechanism 2A according to another preferred embodiment of the present invention shown in FIG. It differs from the hand-wound timepiece 3 having the hand-winding mechanism 2 shown in FIG. 1 in that it has a moving round hole spring structure 1A.

  In the swinging round hole spring structure 1A composed of the spring member 60A in the form of a sheet metal bent body shown in FIGS. 7 and 6, the pushing hook spring portion 62A includes the pushing hook spring arm portion 65A and the pushing locking end portion 66. And have. The hook spring arm portion 65A is connected to the one side edge portion 61eA of the flat plate-like main body portion 61a at the base end portion 65aA, and extends to the base end side meandering arm portion 65g meandering in a Z shape from the base end portion 65aA. A proximal-side longitudinal arm portion or intermediate arm portion 65bA that changes direction from the extending end of the proximal-side meandering arm portion 65g and extends substantially parallel to the return spring portion 64, and the proximal-side longitudinal arm portion 65bA The distal end portion 65cA includes a distal end side arm portion 65dA that is bent substantially at a right angle. In the illustrated example, the proximal-side meandering arm portion 65g is turned from the first arm portion 65g1 extending toward the return spring portion 64, and extends from the distal end of the first arm portion 65g1 so as to extend substantially parallel to the return spring portion 64. The second arm portion 65g2 and the third arm portion 65g3 that turns from the tip of the second arm portion 65g2 and extends toward the return spring portion 64 again. The push-in locking end portion 66 includes a locking projection 66a that extends laterally with respect to the distal end side arm portion 65dA at the distal end portion of the distal end side arm portion 65dA. An oblique guide surface 66b as a push guide inclined surface is formed on the lower edge side of the lock projection 66a, and a lock surface 66c extending substantially in the lateral direction as a push lock surface is formed on the upper side. Is the same as the case of the push-in locking end portion 66 of the push-in hook spring portion 62 of the swinging round hole spring structure 1.

  In this oscillating round hole spring structure 1A, the pushing hook spring portion 62A (the pushing hook spring arm portion 65A) is provided with the proximal side meandering arm portion 65g, so that it is elastically swung in the L1 and L2 directions. As a result, the pushing hook spring portion 62A is more elastic in the T1 and T2 directions in the pushing hook spring arm portion 65A than the pushing hook spring portion 62 (the pushing hook spring arm portion 65) of the swinging round hole spring structure 1. Therefore, even if the positioning spring portion 63 is not provided independently, the pushing hook spring portion 62A itself is pushed against the pushing engagement end portion by the T1, T2 direction elastic force of the pushing hook spring arm portion 65A. 66, it can be pressed in the T1 direction against the opposing side edge of the opening 16 of the first receiver 10.

  Also in this oscillating round hole spring structure 1A, since the plate-like mounting portion 61A and the push-in hook spring portion 62A are provided, not only the assembly to the receiver 10 can be easily and surely performed. The possibility that the swinging round hole spring structure 1 </ b> A is first detached from the receiver 10 can be suppressed low.

  In this oscillating round hole spring structure 1A, the positioning spring portion 63 of the oscillating round hole spring structure 1 is lacking. Therefore, the engagement by the pushing and catching spring portion 62A is determined by the H1, H2 direction oscillating position of the return spring portion 64A. The stopping action may vary somewhat.

  In the swinging round hole spring structure as a return spring structure for a hand-wound watch, the push-and-push spring part and the positioning spring part and the return spring part extend in different directions instead of extending in the same direction (generally in parallel). May be. In still another preferred embodiment of the present invention shown in FIGS. 8 and 9, the same elements as those shown in FIGS. 1 to 5 are designated by the same reference numerals and generally correspond but differ. Elements are given the same symbol followed by a subscript B.

  As shown in FIG. 9, the swinging round hole spring structure 1B according to still another preferred embodiment of the present invention has a return spring portion 64B instead of extending substantially in parallel with the push / push spring portion and the positioning spring portion. The swinging round hole spring structure shown in FIG. 1 to FIG. 5 extends in a direction intersecting with the extending direction of the hooking spring part 62B and the positioning spring part 63B, more specifically in a direction substantially orthogonal to each other. Different from body 1.

  More specifically, as shown in FIG. 9, in the swinging round hole spring structure 1 </ b> B composed of the spring member 60 </ b> B in the form of a sheet metal bent body, the pushing hook spring 62 </ b> B and the positioning of the plate-like mounting portion 61 </ b> B are positioned. The return spring portion 64B is connected not to the edge portion 61fB adjacent to the edge portion 61eB to which the base end portions 65a and 63b of the spring portion 63B are connected but to the opposite edge portion 61g.

  Here, the shape and structure of the return spring portion 64B itself are practically the same as the shape and structure of the return spring portion 64. That is, the return spring portion 64B has a return spring arm portion 68B connected to the side edge 61g of the plate-like placement portion 61B, and a pressing portion 69B formed on the distal end side of the return spring arm portion 68B. The spring arm portion 68B is a base end portion 68aB that is bent at a substantially right angle with respect to the side edge 61g, and positioning of the base end side arm portion 65b of the pushing hook spring portion 62B and the positioning spring portion 63B from the base end portion 68aB. And a return spring arm main body 68bB extending in a direction substantially perpendicular to the spring arm 63a. The return spring arm main body portion 68bB has a base side return spring arm main body portion 68cB and a distal end side return spring arm main body portion 68dB that are bent in the extending surface. The pressing portion 69B includes a relatively wide elongated portion 69aB connected to the distal end side of the distal-side return spring arm main body portion 68dB in the return spring arm main body portion 68bB. Therefore, the return spring portion 64B can be elastically bent and deformed in the directions H2 and H1 so that the pressing portion 69B is swung.

  In the positioning spring portion 63B, unlike the positioning spring portion 63 shown in FIGS. 1 to 5, the plate-like placement portion 61B rotates in the U1 direction when an external force in the U1 direction (FIG. 9) is applied to the return spring portion 64B. In order to restrict the movement, the push-in engagement end 67B has a projection 67d similar to the projection 66 on the outer edge 67bB. More specifically, the protrusion 67d of the pushing engagement end portion 67B of the positioning spring portion 63B is similar to the guide surface 66b of the protrusion 66a (but inclined in the opposite direction) and the protrusion 66a. Although it is substantially the same as the stop surface 66c, it has a locking surface or a guide locking surface 67f that is inclined rather than laterally.

  Since the projection 67d of the pushing engagement end portion 67B of the positioning spring portion 63B has the guide locking surface 67f, the projection 66B of the pushing hook spring portion 62B is provided so that the pushing hook spring portion 62B can be pulled out. Has a locking guide surface 66cB which is not lateral but inclined.

  Further, in the swinging round hole spring structure 1B, the relative arrangement and shape (structure) of the push-in hook spring part 62B, the positioning spring part 63B, and the return spring part 64B as described above correspond to the swinging round hole spring structure 1. Since the portion is slightly different from the portion, the plate-like placement portion 61B also has a shape slightly different from that of the plate-like placement portion 61. In this example, the plate-like placement portion 61B has one opening 61bB instead of two.

  A hand-wound timepiece 3B according to another preferred embodiment of the present invention having the hand-winding mechanism 2B according to another preferred embodiment of the present invention shown in FIG. It differs from the hand-winding timepiece 3 having the hand-winding mechanism 2 shown in FIG. 1 in that it has a moving round hole spring structure 1B.

  In this oscillating round hole spring structure 1B, since both the pushing hook spring portion 62B and the positioning spring portion 63B are provided with projections 66a and 67d, not only the pushing hook spring portion 62B but also the positioning spring portion 63B oscillates. It is possible to prevent the round hole spring structure 1B from coming off. In that case, the side edge portion 65f of the pushing hook spring portion 62B fulfills a positioning function so as to be able to be locked by the locking surface 67f of the projection 67d of the positioning spring portion 63B. That is, both of the pushing / pulling spring part 62B and the positioning spring part 63B serve as positioning and pushing / hooking with respect to the other.

  Further, in this swinging round hole spring structure 1B, since both the pushing hook spring portion 62B and the positioning spring portion 63B have projections 66a and 67d provided with locking surfaces 66cB and 67f on their outer edges, the return spring Even if the holding force tends to be somewhat weakened by the portion 64B extending in a direction perpendicular to the extending direction of the spring portions 62B and 63B, rather than being parallel to the push-in hook spring portion 62B and the positioning spring portion 63B, The original portion of the oscillating round hole spring structure 1B, that is, the plate-like mounting portion 61B can be held at a predetermined position in the recess 13 of the receiver 10 against the external force applied to the return spring 64B in the U1 and U2 directions. .

  Furthermore, with respect to the swinging round hole spring structure 1B of FIG. 9, the swinging round hole spring structure 1A of FIG. 7 lacks the positioning spring portion 62 with respect to the swinging round hole spring structure 1 of FIG. Further, a swinging round hole spring structure 1C as a return spring structure for a hand-wound watch lacking the positioning spring portion 62B may be used.

  In still another preferred embodiment of the present invention shown in FIGS. 10 and 11, the same elements as those shown in FIGS. 1 to 5 are given the same reference numerals and the elements shown in FIGS. The same reference numerals are also given to the same elements (the same applies to the case where the suffix B is added at the end), and the elements corresponding to the elements shown in FIGS. A suffix C is added after a symbol (excluding the suffix B when the suffix B is present).

  As shown in FIG. 11, the oscillating round hole spring structure 1C according to another preferred embodiment of the present invention has a plate-like placement portion 61C, a push-and-push spring portion 62C, and a return spring portion 64B. 9 is substantially the same as the swinging round hole spring structure 1B shown in FIG. 9, but lacks the positioning spring portion 63B and the pushing hook spring portion 62C has a slightly different shape or structure from the pushing hook spring portion 62B. This is different from the swinging round hole spring structure 1B shown in FIG. Note that the plate-like placement portion 61C may have a slightly different shape so that the pushing hook spring portion 62C has an appropriate shape and function. A hand-wound timepiece 3C according to another preferred embodiment of the present invention having the hand-winding mechanism 2C according to still another preferred embodiment of the present invention shown in FIG. 10 is replaced with a swinging round hole spring structure 1B. It differs from the hand-winding timepiece 3B provided with the hand-winding mechanism 2B shown in FIG. 8 in that it has a swinging round hole spring structure 1C.

  In the oscillating round hole spring structure 1C comprising the spring member 60C in the form of a sheet metal bent body shown in FIGS. 11 and 10, the pushing hook spring portion 62C has a wide and relatively rigid pushing hook spring arm portion 65C. And a push-in locking end portion 66. The hook spring arm portion 65C is connected to one side edge portion 61eC of the flat plate-like main body portion 61a at the base end portion 65aC, and includes a base end side arm portion 65bC extending from the base end portion 65aC and the base end side arm portion 65bC. The distal end portion 65cC is provided with a distal end side arm portion 65dC that extends at a substantially right angle. The push-in locking end portion 66 includes a locking projection 66a that extends laterally with respect to the distal end side arm portion 65dC at the distal end portion of the distal end side arm portion 65dC. An oblique guide surface 66b as a push guide inclined surface is formed on the lower edge side of the lock projection 66a, and a lock surface 66c extending substantially in the lateral direction as a push lock surface is formed on the upper side. Is the same as the case of the push-in locking end portion 66 of the push-in hook spring portion 62 of the swinging round hole spring structure 1. The return spring portion 64B is practically the same shape and in the same position as the return spring portion 64B of the swinging round hole spring structure 1B shown in FIG.

  In this oscillating round hole spring structure 1C, since the rigidity of the pushing hook spring portion 62C (the pushing hook spring arm portion 65C) is relatively high, even if the positioning spring portion 63 is not provided independently, a plate-like mounting is provided. The opening 61bC of the mounting portion 61C and the projection 15a of the recess 13 of the first receptacle 10 are fitted, and the back surface 13d (the plate-like portion 13b on the side edge of the opening 16 of the positioning latch projection 66 and the first receptacle 10). The plate-like mounting portion 61C that defines the reference position of the oscillating round hole spring structure 1C can be held at a predetermined position of the receiver 10 in a desired posture by engagement or locking with the engagement (see FIG. 2).

  Also in this oscillating round hole spring structure 1C, since the plate-like mounting portion 61C and the pushing hook spring portion 62C are provided, not only the assembly to the receiver 10 is easy and surely performed. Thus, the possibility that the swinging round hole spring structure 1C is first detached from the receiver 10 can be suppressed to be relatively low.

  Since the swinging round hole spring structure 1C lacks the positioning spring part 62B, the locking action by the push / push spring part 62C varies depending on the swinging position of the return spring part 64B in the H1 and H2 directions, or the return spring part. There is a surface that is easily affected by the 64B U1-direction swing. Further, in this oscillating round hole spring structure 1C, since the rigidity of the pushing hook spring portion 62C is relatively high, there is a slight difference depending on the manufacturing tolerance of the spring portion 62C and the tolerance of the related irregularities of the concave portion 13 of the first receiver 10. There is a risk of looseness.

1,1A, 1B, 1C Swing round hole spring structure (Return spring structure for hand-wound watch)
2, 2A, 2B, 2C Manual winding mechanism 3, 3A, 3B, 3C Manual winding clock 4 Manual winding mechanism main body 6 Base plate 7 Automatic winding train receiver 10 First receiver 10a Region 11 Recessed portion 12 Thin portion 13 Swing round hole Spring arrangement recess 13a Bottom surface portion 13b Locking plate-like portion 13c Front side surface 13d Back side surface (rear surface)
13e Wall part 14 Flat bottom part 15a, 15b Convex part 16 Opening 16a, 16b Edge part 19 Arc-shaped long hole 20 Incense box wheel 21 Incense box gear 21a Inner peripheral wall 22 Incense box true 22a, 22b Bearing part 23 Mainspring 24 Square hole wheel 25 Angle Bore screw 26 Kohase 30 Winding stem 31 Square column part 32 Stitch wheel 32a, 34a Ratchet gear part 33 Columnar part 34 Hatch wheel 34b Outer gear part 40 Round hole wheel structure 41 Lower round hole wheel 42 Upper round hole wheel 50 Swing Round hole wheel structure 51 Bearing portion 51a Bearing body portion 51b Flange-like portion 52 Shaft portion 52a Shaft body portion 52b Large diameter portion 53 Oscillating round hole gear portions 60, 60A, 60B, 60C Spring members 61, 61A, 61B, 61C Plate-like mounting portion 61a Flat plate-like main body portions 61b, 61c Opening portions 61bB, 61bC Opening portions 61d Back surface 61e, 61eA, 61eB, 61eC Side edge portions 61f, 61fB Side edge portion 61g Side edge portion 62, 62A, 62B, 62C Pushing hook spring portion 63, 63B Positioning spring portion 63a Positioning spring arm portion 63b Base end portion 63c Base end side arm portion 63d Tip end portion 64, 64B Return spring Portions 65, 65A, 65C Pushing hook spring arm portions 65a, 65aA, 65aC Base end portions 65b, 65bC Base end side arm portions 65bA Base end side longitudinal arm portions (intermediate arm portions)
65c, 65cA, 65cC Tip portion 65d, 65dA, 65dC Tip side arm portion 65f Side edge 65g Base end side meandering arm portion 65g1 First arm portion 65g2 Second arm portion 65g3 Third arm portion 66 Pushing locking end portion 66a Locking Protrusion 66b inclined guide surface (push-in guide inclined surface)
66c Locking surface 66cB Locking guide surface (Guide locking surface)
67, 67B Push-in engagement end portion 67a Front end side arm portion 67b, 67bB Side edge 67c Curved inclined guide surface 67d Projection portion 67e Inclined guide surface 67f Guide locking surface 68, 68B Return spring arm portion 68a, 68aB Base end portion 68b, 68bB Return spring arm main body portion 68c, 68cB Base side return spring arm main body portion 68d, 68dB Tip side return spring arm main body portion 69, 69B Pressing portion 69a, 69aB Relatively wide elongated portion 70 Second transmission wheel structure 71, 72 Bearing portion 73 Shaft portion 74 Second transmission gear portion 75 Second transmission pinion portion A, B, E, J Center axis A1, A2, B1, B2, E1, E2, J1, J2 Rotating direction A3, A4 Translation direction D1, D2 Longitudinal direction (oscillation direction)
F1 Elastic deflection force H1, H2 Bending (oscillating) direction K1 Width L1, L2 Oscillating direction M1, M2 direction P1 Normal hand movement position Q1 Engagement position Q2 Non-engagement position T1, T2 Direction U1, U2 Direction W1 Interval

Claims (7)

A plate-like placement portion placed on the surface of the support member;
A push-engagement end that is pushed into the opening of the latching plate-like portion of the support member and is latched at the back of the wall defining the opening of the latching plate-like portion; A pushing hook spring portion having a hook spring arm portion extending from one side edge of the plate-like mounting portion; and
A return spring portion extending from another side edge of the plate-like placement portion;
The plate-like placement portion is engaged with a convex portion protruding from the surface of the support member; and
A positioning spring portion that includes a positioning spring arm portion that extends alongside the hook spring arm portion from the one side edge portion of the plate-like placement portion, and that is engaged with the opening portion of the support member at the tip portion;
The push-engagement end that bends and extends substantially at a right angle at the front end of the hook spring arm has an oblique push guide inclined surface on the front end side, and is substantially transverse to the hook spring arm. It has an extended push-in locking surface on the base end side,
A return spring structure for a hand-wound timepiece having a distal-side arm portion that bends substantially at a right angle and extends alongside the push-in locking end portion at the distal end side of the positioning spring portion.   The other side edge portion of the plate-like mounting portion connected to the return spring portion is opposite to the one side edge portion with respect to the one side edge portion of the plate-like mounting portion connected to the pushing hook spring portion. The return spring structure for a hand-wound timepiece according to claim 1, wherein the return spring portion is located on the side and extends in a direction intersecting with the hook spring arm portion of the push-in hook spring portion.   The other side edge portion of the plate-like placement portion connected to the return spring portion is adjacent to the one side edge portion with respect to the one side edge portion of the plate-like placement portion connected to the pushing hook spring portion. The return spring structure for a hand-wound timepiece according to claim 1 or 2, wherein the return spring portion extends side by side with the hook spring arm portion of the push hook spring portion. The return spring structure for a hand-wound timepiece according to any one of claims 1 to 3 , wherein the positioning spring portion is formed of a substantially rectangular plate material .   The hand-wound timepiece according to any one of claims 1 to 4, wherein the hook spring arm portion is provided closer to a distal end portion side of the return spring portion than the opening portion. Return spring structure.   The return spring structure for a hand-winding timepiece according to any one of claims 1 to 5 is moved from a non-meshing position where the meshing with the second transmission wheel is disengaged to a meshing position meshing with the second transmission wheel. And a hand-winding mechanism configured to exert an elastic force to displace the swinging round hole wheel on the swinging round hole wheel. A hand-wound timepiece having the return spring structure for a hand-winding timepiece according to any one of claims 1 to 5 or the hand-winding mechanism according to claim 6 .

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